Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, speeding through our celestial neighborhood.

Astronomers witness dawn of new solar system for 1st time Scientists were able to see the moment when planets began to form around a star.

A tiny meteorite is rewriting what scientists thought they knew about the origins of our solar system.

Astronomers have discovered an object at the edge of the solar system that is locked in a strange rhythmic dance with the ice giant Neptune.

A nearby star drifts into the outskirts of our solar system. Its gravity disturbs the Oort Cloud and alters the orbits of far-out objects.

Have you ever heard of Alpha Centauri? It's the star system closest to our own, and engineers now think they could make a ...

While the idea of a passing star disrupting our solar system sounds like science fiction, it's a natural consequence of the dynamic environment of our galaxy. The potential passage of HD 7977 is a ...

For example, the first mile-sized planetesimals in our solar system–which grew to become celestial bodies like Earth or Jupiter’s core–formed right after the condensation of these same ...

Astronomers have discovered the earliest seeds of planets forming around HOPS-315, a baby star located 1,300 light-years away.

It Came From Outside Our Solar System, and It Looks Like a Comet 3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy.

NASA has issued a chilling update on the mysterious 'interstellar object' racing through our solar system. The visitor from another star, dubbed 3I/ATLAS, was first spotted on July 1 as it reached ...